Home / 146,490.30-219,735.45-87,392.70

Finding the Fourth Proportional to 146,490.30, 219,735.45 and 87,392.70

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Solution

The fourth proportional to 146,490.30, 219,735.45 and 87,392.70 is: 131,089.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,490.30 : 219,735.45 = 87,392.70 : x
  2. Step 2: Convert to fraction form
    146,490.30/219,735.45 = 87,392.70/x
  3. Step 3: Cross multiply
    146,490.30x = 219,735.45 × 87,392.70
  4. Step 4: Simplify right side
    146,490.30x = 19,203,274,261.22
  5. Step 5: Solve for x
    x = 19,203,274,261.22/146,490.30
  6. Step 6: Final answer
    x = 131,089.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.